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MECHANICAL BEHAVIOR OF WASTE MATERIALS AND NON IDEAL SOILS
Soil mechanics developed on the basis of the study of two ideal materials: pure clay and clean sand (sand without fines). This line of research seeks to extend the body of knowledge of materials that don’t fit either model and thus behave differently.
Specific Research Interests
Mechanical response of silty and clayey sands
1. Salgado, R., Bandini, P. and Karim, A. (2000). “Shear Strength and Stiffness of Silty Sands.” Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 126(5), 451-462.
2. Carraro, J. A., Bandini, P. and Salgado, R. (2002). "Evaluation of Liquefaction Resistance of Clean and Silty Sands Based on CPT Cone Penetration Resistance." Journal of Geotechnical and Geoenvironmental Engineering, ASCE, accepted for publication.
Cavity expansion in lightly cemented sand
Analysis of embankments and backfills made of soil-tire shred mixes
1. Bernal, A., Ahmed, I., Lovell, C.W., and Salgado, R. (1994), “Rubber Sand as Lightweight Geomaterial.” X Brazilian Conference of Soil Mechanics and Foundation Engineering, Vol. 2, November, 593-600, Iguassu Falls.
2. Bernal, A., Swan, R., Salgado, R. and Lovell, C.W. (1995). "Pullout Testing of Geogrids in Tire Shreds and Rubber Sand." Proc. 3rd Annual Great Lakes Geotechnical and Geoenvironmental Conference, Cleveland, OH, May, 219-231.
3. Bernal, A., Swan, R., Salgado, R. and Lovell, C.W. (1997). "Pullout Testing of Geogrids in Tire Shreds and Rubber Sand." Testing Soil Mixed with Waste or Recycled Materials, ASTM STP 1275, Mark A. Wasemiller, Keith B. Hoddinott (Eds.), ASTM, pp. 109-121.
4. Bernal, A., Salgado, R., Swan, R., Jr. and Lovell, C.W. (1997). “Interaction Between Tire Shreds, Rubber-Sand and Geosynthetics.” Geosynthetics International, 4(6), November-December, 623-643.
5. Lee, J., Salgado, R., Bernal, A., and Lovell, C.W. (1999). “Tire Shreds and Rubber Sand as Lightweight Backfill Material.” Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 125, No. 2, February, 132-141.
6. Lee, J. H. and Salgado, R. (2000). "Application of Shredded Tires as Lightweight Backfill." Proceedings of International Symposium on Coastal Geotechnical Engineering in Practice, Yokohama, Japan, Sept. 20-22, Vol. 1, pp. 623 - 628.
Mechanical behavior of bottom and fly ash
1. Lee, K., Salgado, R., Jeon, W. and Kim, N. "Engineering Properties of Wastewater Treatment Sludge Modified by Hydrated Lime and Fly Ash." Journal of Solid Waste Technology and Management, Vol 28, No.3, August 2002, pp. 145-153.
2. Korayem, A., Salgado, R., Lovell, C. W. (1996). “Compaction of Fly and Bottom Ash Mixtures.” Proceedings of the 51st Industrial Waste Conference, May 6-8, pp. 251-255.
3. Karim, A., Salgado, R. and Lovell, C.W. (1997). "Building Embankments of Coal Combustion Fly Ash-Bottom Ash Mixtures." Proc. 48th Highway Geology Symnposium, Knoxville, TN, May, 66-74.
4. Karim, A., Lovell, C.W., and Salgado, R. (1998). “Mixtures of Coal Combustion Ashes for Highway Embankments.” Fourth Symposium on Environmental Geotechnics and Global Sustainable Development, Boston, August, 431-440.
5. Lee, J., Salgado, R., Karim, A. and Lovell, C.W. (2001). "Compaction and Shear Strength of Fly and Bottom Ash Mixtures." Journal of Solid Waste Technology and Management, 27(3).
6. Lee, J. H. and Salgado, R. (2002). "Mechanical properties of fly and bottom ash mixtures for embankment application." Proceedings of the International Workshop on Light-Weight Geomaterials (IW-LGM2001), Tokyo, Japan, March, pp. 83-89.
Mechanical behavior of other waste materials
1. Park, T., Lee, K.H., Salgado, R., Lovell, C.W. and Coree, B. (1997). “Use of Pyrolized Carbon Black as an Additive in Hot-Mix Asphalt.” Journal of Transportation Engineering, ASCE, 123(6), November, 489-494.
2. Lee, K., Cho, J., Salgado, R., Lee, I. and Kim, N. (2001). "Retaining Wall Model Test with Waste Foundry Sand Mixture as Controlled Low Strength Materials." 17th International Conf. on Solid Waste Technology and Management, Oct. 21-24, Philadelphia, USA, Section 3B Waste Materials in Construction, pp. 204-210.
3. Lee, K., Cho, J., Salgado, R. and Lee, I. (2001). "Retaining Wall Model Test with Foundry Sand Mixture Backfill." Geotechnical Testing Journal, ASTM, 24(4), 401-408.
4. Lee, K., Yoon, Y., Cho, J., Salgado, R., Lee, I., and Kim, N. "Engineering Properties of Waste Foundry Sand Mixtures as Controlled Low Strength Materials." Journal of Solid Waste Technology and Management, in press.
5. Lee, K., Park, T., Salgado, R. and Cho, Y. "Engineering Properties of Asphalt Binder Modified by Pyrolized Carbon Black." Journal of the Canadian Society of Civil Engineering (ref# 2034).